5250138885 has 12 divisors (see below), whose sum is σ = 9100240812. Its totient is φ = 2800074048.

The previous prime is 5250138863. The next prime is 5250138893. The reversal of 5250138885 is 5888310525.

It can be written as a sum of positive squares in 2 ways, for example, as 2428616961 + 2821521924 = 49281^2 + 53118^2 .

It is not a de Polignac number, because 5250138885 - 2⁵ = 5250138853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 116669753 = 5250138885 / (5 + 2 + 5 + 0 + 1 + 3 + 8 + 8 + 8 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5250138885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58334832 + ... + 58334921.

It is an arithmetic number, because the mean of its divisors is an integer number (758353401).

Almost surely, 2^5250138885 is an apocalyptic number.

It is an amenable number.

5250138885 is a deficient number, since it is larger than the sum of its proper divisors (3850101927).

5250138885 is a wasteful number, since it uses less digits than its factorization.

5250138885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116669764 (or 116669761 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The square root of 5250138885 is about 72457.8421221609. The cubic root of 5250138885 is about 1738.0286482751.

The spelling of 5250138885 in words is "five billion, two hundred fifty million, one hundred thirty-eight thousand, eight hundred eighty-five".